5 rereads, but I last read Cue for Treason over 50 years ago and the first three Dalemarks over 30 (IIRC); and one must reread Full Fathom Five after reading Four Roads Cross because only then does it make sense.

39 books owned before 2014: I'd have thought there were more

32 books by 26 writers of colour. The number goes up if you include books whose protagonists are characters of colour (thank you, Mr Cotterill)